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Remarks (No two of our Warblers more)

No two of our Warblers more closely resemble each other than do immature examples of this and the preceding species. There is no difference in the color of the upper parts, but castanea has the under parts tinged with delicate cream-buff, strongest on the flanks, while striata is distinctly yellowish below.

Range." Eastern North America to the Rocky Mountains, north to Greenland, the Barren Grounds, and Alaska, breeding from northern New England northward; south in winter to northern South America" (A. O. U.). Washington, abundant T. V., May 1 to June 5; Sept. 5 to Oct. 20. Sing Sing, common T. V., May 7 to June 6; Aug. 30 to Oct. 16. Cambridge, abundant T. V., May 12 to June 5; Sept. 8 to Oct. 15. Nest, of twigs, moss, rootlets, etc., lined with fine grasses and tendrils, generally in spruce trees, about six feet up. Eggs, four to five, white, more of less speckled and spotted, and generally heavily blotched at the larger end with cinnamon-, olive-, or rufous-brown, 70 x 54.

Black-polls are rather more leisurely in their movements than most of their congeners. Adults should be identified without difficulty, but the immature birds, which are generally abundant in the fall, may occasion some trouble. Mr. Langille describes their song as one of the WOOD WARBLERS. most slender and wiry in all our forests, and as distinguishable as the hum of the cicada or the shrilling of the katydid. "Tree-tree-tree-treetree-tree-tree-tree, rapidly uttered, the monotonous notes of equal length, beginning very softly, gradually increasing to the middle of the strain, and then as gradually diminishing, thus forming a fine musical swell, may convey a fair idea of the song. There is a peculiar soft and tinkling sweetness in this melody, suggestive of the quiet mysteries of the forest, and sedative as an anodyne to the nerves." BLER. 662. Dendroica blackburniæ (Gmel.). BLACKBURNIAN WAR- Ad. 8.-Center of the black crown, a line over the eye, patch behind the black ear-coverts, throat, and breast beautiful rich orange; back black, streaked with whitish; wing-coverts white, forming a large white patch on the wing; inner vane of most of the tail-feathers almost entirely white, except at the tip; the outer vane of the outer feather white at the base; belly tinged with orange, sides streaked with black. Ad. g. - Resembles the 8, but the orange markings are duller, the upper parts are ashy olive-green streaked with black and whitish; the white on the wings and tail is less extensive. Im. 8. - Resembles the, but has the orange markings dull yellow, the crown-patch nearly absent. Im..-Similar to the im. 8, but the yellow markings much paler, nearly buffy, the back browner. L., 5.25; W., 2-71; T., 1.96; B. from N., 31.